About this Simulation

This interactive simulation lets students explore rotational symmetry by rotating various 2D shapes—equilateral triangles, isosceles triangles, squares, and rectangles—around their centres. Learners can observe how shapes map onto themselves at different rotation angles and determine the order of rotational symmetry for each polygon.

Learning objectives: Understand what rotational symmetry means and identify the order of rotational symmetry for common 2D shapes | Visualise how geometric shapes transform through rotation and recognise rotational invariance | Apply symmetry concepts to classify and compare properties of polygons